N779UA
For a while, I almost exclusively crossed the pond with AA while they had their "More Room in Coach" deal
The AA experiment proved very neatly that lower cost is what works best for the Pax and filling your a/c with the max number of seats was what works best of the carrier.
N779UA welcome aboard. Do use the search function for topics before posting, as there may well be a 'thread' already in place possibly even with answers you seek. Do keep your seat belt fastened at all times as the cabin [aka Forum] can experience unexpected turbulence ... ]